<template>
	<view class="goodsCon">
		<view class="item">
			<text>预估重量</text>
			<view class="bg goodInfo">
				<view class="symbol" :class="isLessThan ? 'active' : ''" @click="handleMinus">-</view>
				<view class="num">
					<input class="uni-input" type="number" maxlength="6" v-model="weight" @blur="handleSymbol" />
					<text>kg</text>
				</view>
				<view class="symbol" :class="isExceed ? 'active' : ''" @click="handleAdd">+</view>
			</view>
		</view>
		<view class="item">
			<text>总体积</text>
			<view class="bg goodInfo">
				<!-- 暂时去除 :class="isLessThanVolume ? 'active' : ''" -->
				<view class="symbol" @click="handleVolumeMinus">-</view>
				<view class="num">
					<input class="uni-input" type="number" maxlength="6" v-model="volume" @blur="handleVolume" />
					<text>m³</text>
				</view>
				<!-- 暂时去除 :class="isExceedVolume ? 'active' : ''" -->
				<view class="symbol" @click="handleVolumeAdd">+</view>
			</view>
		</view>
		<view class="item calculate">
			<view class="bg">
				<input class="uni-input" type="number" maxlength="3" v-model="measureLong" placeholder="长" @input="handleCalculate" />
				<text :class="measureLong ? 'active' : ''">cm</text>
			</view>
			<text>*</text>
			<view class="bg">
				<input class="uni-input" type="number" maxlength="3" v-model="measureWidth" placeholder="宽" @input="handleCalculate" />
				<text :class="measureWidth ? 'active' : ''">cm</text>
			</view>
			<text>*</text>
			<view class="bg">
				<input class="uni-input" type="number" maxlength="3" v-model="measureHigh" placeholder="高" @input="handleCalculate" />
				<text :class="measureHigh ? 'active' : ''">cm</text>
			</view>
		</view>
	</view>
</template>

<script setup>
import { ref, watch, nextTick } from 'vue';
// 接口
import { calculateFreight } from '@/pages/api/freight.js';
// ------定义变量------
const props = defineProps({
	detailsData:{
		type:Object,
		default:()=>({})
	}
})
let emit = defineEmits()
let weight = ref(1); //重量
let volume = ref(0); //体积
let measureLong = ref(null); //长
let measureWidth = ref(null); //宽
let measureHigh = ref(null); //高
let isLessThan = ref(true); //判断重量是否小于0.1
let isExceed = ref(false); //判断重量是否大于9999
let isLessThanVolume = ref(true); //判断体积是否小于0.0001m³
let isExceedVolume = ref(false); //判断体积是否大于99m³
let freightData = ref(null);
// 暴漏给父组件
defineExpose({
	weight,
	volume,
	measureLong,
	measureWidth,
	measureHigh,
	freightData
});
// ------生命周期------
// 监听重量数值，小数点后保留一位
watch(weight, (newValue, oldValue) => {
	const val = Number(newValue);
	nextTick(() => {
		// 数值小于0.1并且大于0  数值默认为1
		if (val < 0.1 &&( val > 0&&val < 1)) {
			weight.value = 1;
		}
		// 处理小数点，小数点保留1位
		if (val > 0.1) {
			weight.value = parseInt(val * 10) / 10;
		}
		// 数值小于等于1 左侧按钮置灰
		if (val <= 1) {
			isLessThan.value = true; //左侧减号置灰
		} else {
			isLessThan.value = false; //左侧减号去除置灰
			if (val >= 9999) {
				weight.value = 9999;
				isExceed.value = true; //右侧加号置灰
			} else {
				isExceed.value = false; //右侧加号去除置灰
			}
		}
	});
});
// 监听长，取整
watch(measureLong, (newValue, oldValue) => {
	const val = Number(newValue);
	nextTick(() => {
		measureLong.value = Math.floor(val);
		if (newValue <= 0) {
			measureLong.value = null;
		}
	});
});
// 监听宽，取整
watch(measureWidth, (newValue, oldValue) => {
	const val = Number(newValue);
	nextTick(() => {
		measureWidth.value = Math.floor(val);
		if (newValue <= 0) {
			measureWidth.value = null;
		}
	});
});
// 监听高，取整
watch(measureHigh, (newValue, oldValue) => {
	const val = Number(newValue);
	nextTick(() => {
		measureHigh.value = Math.floor(val);
		if (newValue <= 0) {
			measureHigh.value = null;
		}
	});
});
// ------定义方法------
// 通过体积重量获取总额
const getfreight = async () => {
	const details=props.detailsData
	let data = {
		senderCountyId: details.senderCountyId,
		receiverCountyId: details.receiverCountyId,
		volume:volume.value===0?1:volume.value*1000000,
		weight: weight.value
	};
	await calculateFreight(data).then(res => {
		emit('getFreight',res.data.freight)
	});
};
//触发重量输入如果输入0，自动判断为1kg,最小可输入值为0.1kg,最大值为9999kg
const handleSymbol = e => {
	const value = e.detail.value;
	if (value < 0.1) {
		weight.value = 1;
		isLessThan.value = true; //左侧减号置灰
	} else {
		if (value > 0.1 && value <= 1) {
			isLessThan.value = true;
		} else {
			isLessThan.value = false; //左侧减号去除置灰
		}
		
		isDetails()
		if (value >= 9999) {
			isExceed.value = true; //右侧加号置灰
			weight.value = 9999;
		} else {
			isExceed.value = false; //右侧加号去除置灰
			isDetails()
		}
	}
	
};
const isDetails=()=>{
	if(props.detailsData.id!==undefined){
		getfreight()
	}
}
// 减重量
const handleMinus = () => {
	// 重量减去1
	if (weight.value > 1) {
		weight.value--;
		isExceed.value = false; //右侧加号去除置灰
		weight.value = weight.value.toFixed(1);
	}
	if (weight.value <= 0) {
		weight.value = 1;
		isLessThan.value = true; //左侧减号置灰
	}
	isDetails()
};
// 加重量
const handleAdd = () => {
	// 重量加1
	if (weight.value < 9999) {
		++weight.value;
		isLessThan.value = false; //左侧减号去除置灰
	}
	if (weight.value === 9999) {
		isExceed.value = true; //右侧加号置灰
	}
	isDetails()
};

// 体积
const handleVolume = e => {
	const value = Number(e.detail.value);
	if (value < 0.0001) {
		// isLessThanVolume.value = true;
		volume.value = 0;
	} else {
		// isLessThanVolume.value = false;
		if (value > 99) {
			// isExceedVolume.value = true; //右侧加号置灰
			volume.value = 99;
			return uni.showToast({
				title: '体积最大可不能超过99m³',
				duration: 1000,
				icon: 'none'
			});
		} else {
			volume.value = Number(e.detail.value);
			// isExceedVolume.value = false; //右侧加号去除置灰
		}
		
	}
	isDetails()
};
// 减体积
const handleVolumeMinus = () => {
	// 体积减去1
	if (volume.value > 1) {
		volume.value--;
		// isExceedVolume.value = false; //右侧加号去除置灰
		volume.value = parseInt(volume.value * 10000) / 10000;
	}
	// 体积
	if (volume.value <= 0 || volume.value === 1) {
		volume.value = 0;
		// isLessThanVolume.value = true; //左侧减号置灰
	}
	isDetails()
};
// 加体积
const handleVolumeAdd = () => {
	// 体积加1
	if (volume.value < 99) {
		++volume.value;
		isLessThanVolume.value = false; //左侧减号去除置灰
	}
	if (volume.value === 99) {
		isExceedVolume.value = true; //右侧加号置灰
	}
	isDetails()
};
// 计算立方米
const handleCalculate = () => {
	const long = measureLong.value; //长
	const wide = measureWidth.value; //宽
	const height = measureHigh.value; //高
	// 长宽高都大于1才可以计算
	if (long >= 1 && wide >= 1 && height >= 1) {
		nextTick(() => {
			// 计算立方米：长/100*宽/100*高/100
			let val = (long / 100) * (wide / 100) * (height / 100);
			// 立方米必须大于0.0001
			if (val < 0.0001) {
				volume.value = 0;
			} else if (val > 99) {
				// 小数点后保留四位小数
				isExceedVolume.value = true; //右侧加号置灰
				volume.value = 99;
				return uni.showToast({
					title: '体积最大可不能超过99m³',
					duration: 1000,
					icon: 'none'
				});
			} else {
				volume.value = parseInt(val * 10000) / 10000;
				// 如果体积大于1左侧减号按钮去除置灰
				if (val > 1) {
					isLessThanVolume.value = false; //左侧减号去除置灰
				} else {
					isLessThanVolume.value = true; //左侧减号置灰
				}
				isExceedVolume.value = false; //右侧加号去除置灰
			}
			isDetails()
		});
	}
};

</script>
